Gale Warning 222, NWS Anchorage, AK

274 
FZAK62 PAFC 211159
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
359 AM AKDT Wed Mar 21 2018

Offshore Waters Forecast for the Bering Sea

Wind forecasts reflect the predominant speed and direction
expected. Sea forecasts represent an average of the highest
one-third of the combined wind wave and swell height.

PKZ499-220215-
359 AM AKDT Wed Mar 21 2018
.SYNOPSIS FOR CENTRAL BERING SEA...

A front in the western Bering moves into Southwest Alaska by Thu
evening. A 994 mb low develops along the front near 57N 175E Wed 
afternoon...moves to 60N 179W Thu morning...then moves into the Gulf
of Anadyr Thu evening.

$$

PKZ411-220215-
Bering Sea Offshore West of 180 and East of the International
Dateline-
359 AM AKDT Wed Mar 21 2018

...GALE WARNING THROUGH THURSDAY...

.TODAY...S wind 20 to 35 kt. Seas 13 to 18 ft. Rain showers and
snow showers.
.TONIGHT...SW wind 20 to 35 kt becoming W 30 to 45 kt after
midnight. Seas 12 to 18 ft. Rain showers.
.THU...W wind 30 to 45 kt. Seas 13 to 21 ft.
.THU NIGHT...SW wind 25 to 40 kt. Seas 14 to 20 ft.
.FRI...SW wind 15 to 30 kt. Seas 9 to 17 ft.
.SAT THROUGH SUN...NW wind 10 to 25 kt. Seas 6 to 10 ft.

$$

PKZ412-220215-
Bering Sea Offshore 171W to 180 and North of 56N-
359 AM AKDT Wed Mar 21 2018

...STORM WARNING THURSDAY...

.TODAY...S wind 30 kt. Seas 12 to 17 ft. Rain showers.
.TONIGHT...SE wind 35 kt becoming 30 to 45 kt after midnight. Seas
12 to 19 ft. Rain showers.
.THU...SW wind 35 to 50 kt. Seas 19 to 25 ft. Rain showers.
.THU NIGHT...SW wind 25 to 40 kt. Seas 18 to 23 ft.
.FRI...SW wind 15 to 30 kt. Seas 12 to 20 ft.
.SAT...E wind 10 to 25 kt. Seas 8 to 13 ft.
.SUN...N wind 10 to 20 kt. Seas 8 ft.

$$

PKZ413-220215-
Bering Sea Offshore 171W to 180 and South of 56N-
359 AM AKDT Wed Mar 21 2018

...GALE WARNING THROUGH THURSDAY...

.TODAY...SE wind 25 to 35 kt. Seas 9 to 13 ft. Rain showers.
.TONIGHT...S wind 30 to 45 kt. Seas 11 to 19 ft. Rain showers.
.THU...SW wind 25 to 40 kt. Seas 16 to 20 ft.
.THU NIGHT...SW wind 20 to 35 kt. Seas 14 to 19 ft.
.FRI...S wind 15 to 30 kt. Seas 10 to 17 ft.
.SAT...E wind 15 to 30 kt. Seas 8 to 13 ft.
.SUN...NW wind 10 to 25 kt. Seas 7 to 12 ft.

$$

PKZ414-220215-
Bering Sea Offshore East of 171W-
359 AM AKDT Wed Mar 21 2018

...GALE WARNING TONIGHT AND THURSDAY...

.TODAY...SE wind 15 to 25 kt. Seas 5 to 10 ft.
.TONIGHT...SE wind 20 to 30 kt increasing to 25 to 40 kt after
midnight. Seas 8 to 13 ft. Rain showers.
.THU...S wind 30 to 45 kt becoming SW 20 to 30 kt in the
afternoon. Seas 9 to 16 ft. Rain showers.
.THU NIGHT...SW wind 10 to 25 kt. Seas 9 to 16 ft.
.FRI...SW wind 10 to 25 kt. Seas 9 to 14 ft.
.SAT...SE wind 10 to 25 kt. Seas 7 to 11 ft.
.SUN...NE wind up to 20 kt. Seas 4 to 8 ft.

$$

430 
FZAK62 PAFC 211221
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
421 AM AKDT Wed Mar 21 2018

Offshore Waters Forecast for the Bering Sea

Wind forecasts reflect the predominant speed and direction
expected. Sea forecasts represent an average of the highest
one-third of the combined wind wave and swell height.

PKZ499-220300-
421 AM AKDT Wed Mar 21 2018
.SYNOPSIS FOR CENTRAL BERING SEA...

A front in the western Bering moves into Southwest Alaska by Thu
evening. A 994 mb low develops along the front near 57N 175E Wed 
afternoon...moves to 60N 179W at 969 mb Thu morning...then moves 
into the Gulf of Anadyr at 958 mb Thu evening.

$$

PKZ411-220300-
Bering Sea Offshore West of 180 and East of the International
Dateline-
421 AM AKDT Wed Mar 21 2018

...GALE WARNING THROUGH THURSDAY...

.TODAY...S wind 20 to 35 kt. Seas 13 to 18 ft. Rain showers and
snow showers.
.TONIGHT...SW wind 20 to 35 kt becoming W 30 to 45 kt after
midnight. Seas 12 to 18 ft. Rain showers.
.THU...W wind 30 to 45 kt. Seas 13 to 21 ft.
.THU NIGHT...SW wind 25 to 40 kt. Seas 14 to 20 ft.
.FRI...SW wind 15 to 30 kt. Seas 9 to 17 ft.
.SAT THROUGH SUN...NW wind 10 to 25 kt. Seas 6 to 10 ft.

$$

PKZ412-220300-
Bering Sea Offshore 171W to 180 and North of 56N-
421 AM AKDT Wed Mar 21 2018

...STORM WARNING THURSDAY...

.TODAY...S wind 30 kt. Seas 12 to 17 ft. Rain showers.
.TONIGHT...SE wind 35 kt becoming 30 to 45 kt after midnight. Seas
12 to 19 ft. Rain showers.
.THU...SW wind 35 to 50 kt. Seas 19 to 25 ft. Rain showers.
.THU NIGHT...SW wind 25 to 40 kt. Seas 18 to 23 ft.
.FRI...SW wind 15 to 30 kt. Seas 12 to 20 ft.
.SAT...E wind 10 to 25 kt. Seas 8 to 13 ft.
.SUN...N wind 10 to 20 kt. Seas 8 ft.

$$

PKZ413-220300-
Bering Sea Offshore 171W to 180 and South of 56N-
421 AM AKDT Wed Mar 21 2018

...GALE WARNING THROUGH THURSDAY...

.TODAY...SE wind 25 to 35 kt. Seas 9 to 13 ft. Rain showers.
.TONIGHT...S wind 30 to 45 kt. Seas 11 to 19 ft. Rain showers.
.THU...SW wind 25 to 40 kt. Seas 16 to 20 ft.
.THU NIGHT...SW wind 20 to 35 kt. Seas 14 to 19 ft.
.FRI...S wind 15 to 30 kt. Seas 10 to 17 ft.
.SAT...E wind 15 to 30 kt. Seas 8 to 13 ft.
.SUN...NW wind 10 to 25 kt. Seas 7 to 12 ft.

$$

PKZ414-220300-
Bering Sea Offshore East of 171W-
421 AM AKDT Wed Mar 21 2018

...GALE WARNING TONIGHT AND THURSDAY...

.TODAY...SE wind 15 to 25 kt. Seas 5 to 10 ft.
.TONIGHT...SE wind 20 to 30 kt increasing to 25 to 40 kt after
midnight. Seas 8 to 13 ft. Rain showers.
.THU...S wind 30 to 45 kt becoming SW 20 to 30 kt in the
afternoon. Seas 9 to 16 ft. Rain showers.
.THU NIGHT...SW wind 10 to 25 kt. Seas 9 to 16 ft.
.FRI...SW wind 10 to 25 kt. Seas 9 to 14 ft.
.SAT...SE wind 10 to 25 kt. Seas 7 to 11 ft.
.SUN...NE wind up to 20 kt. Seas 4 to 8 ft.

$$

461 
FZAK62 PAFC 212338
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
338 PM AKDT Wed Mar 21 2018

Offshore Waters Forecast for the Bering Sea

Wind forecasts reflect the predominant speed and direction
expected. Sea forecasts represent an average of the highest
one-third of the combined wind wave and swell height.

PKZ499-221400-
338 PM AKDT Wed Mar 21 2018
.SYNOPSIS FOR CENTRAL BERING SEA...

A front in the central Bering reaches the eastern Bering tonight.
The associated 994 mb low moves into the Gulf of Anadyr this
afternoon. A 992 mb low forms near 50N 173E Fri afternoon.

$$

PKZ411-221400-
Bering Sea Offshore West of 180 and East of the International
Dateline-
338 PM AKDT Wed Mar 21 2018

...GALE WARNING THROUGH THURSDAY NIGHT...

.TONIGHT...S wind 20 to 30 kt becoming W 25 to 40 kt after
midnight. Seas 12 to 18 ft. Rain and snow.
.THU...W wind 30 to 45 kt. Seas 14 to 21 ft.
.THU NIGHT...SW wind 25 to 40 kt becoming 30 kt after midnight.
Seas 14 to 20 ft. Freezing spray.
.FRI...SW wind 15 to 30 kt. Seas 11 to 17 ft.
.FRI NIGHT...W wind up to 20 kt. Seas 9 to 14 ft.
.SAT THROUGH MON...NW wind 10 to 25 kt. Seas 6 to 10 ft.

$$

PKZ412-221400-
Bering Sea Offshore 171W to 180 and North of 56N-
338 PM AKDT Wed Mar 21 2018

...STORM WARNING THURSDAY...

.TONIGHT...SE wind 40 kt. Seas 12 to 19 ft. Rain.
.THU...SW wind 45 to 60 kt. Seas 18 to 25 ft. Snow and rain.
.THU NIGHT...SW wind 25 to 40 kt. Seas 18 to 22 ft.
.FRI...SW wind 20 to 30 kt. Seas 15 to 19 ft.
.FRI NIGHT...S wind 10 to 25 kt. Seas 11 to 15 ft.
.SAT...E wind up to 20 kt. Seas 8 to 13 ft.
.SUN...N wind 10 to 20 kt. Seas 8 ft.
.MON...NW wind 15 kt. Seas 7 ft.

$$

PKZ413-221400-
Bering Sea Offshore 171W to 180 and South of 56N-
338 PM AKDT Wed Mar 21 2018

...GALE WARNING THROUGH THURSDAY NIGHT...

.TONIGHT...SE wind 35 kt becoming S 45 kt after midnight. Seas 12 to
18 ft. Rain.
.THU...SW wind 30 to 45 kt diminishing to 20 to 35 kt in the
afternoon. Seas 15 to 20 ft.
.THU NIGHT...SW wind 20 to 35 kt becoming 30 kt after midnight.
Seas 14 to 18 ft.
.FRI...SW wind 20 to 30 kt. Seas 12 to 17 ft.
.FRI NIGHT...S wind 15 to 30 kt. Seas 12 ft.
.SAT...NE wind 10 to 25 kt. Seas 8 to 13 ft.
.SUN THROUGH MON...NW wind 10 to 25 kt. Seas 7 to 12 ft.

$$

PKZ414-221400-
Bering Sea Offshore East of 171W-
338 PM AKDT Wed Mar 21 2018

...GALE WARNING THROUGH THURSDAY...

.TONIGHT...SE wind 20 to 30 kt increasing to 25 to 40 kt after
midnight. Seas 8 to 13 ft.
.THU...S wind 25 to 40 kt becoming SW 20 to 30 kt in the
afternoon. Seas 9 to 17 ft. Rain and snow.
.THU NIGHT...SW wind 10 to 25 kt. Seas 9 to 16 ft.
.FRI...SW wind 10 to 25 kt. Seas 9 to 15 ft.
.FRI NIGHT...S wind 15 to 25 kt. Seas 8 to 13 ft.
.SAT...SE wind 10 to 20 kt. Seas 6 to 11 ft.
.SUN...NE wind up to 20 kt. Seas 4 to 8 ft.
.MON...NW wind 15 kt. Seas 5 ft.

$$

165 
FZAK62 PAFC 221157
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
357 AM AKDT Thu Mar 22 2018

Offshore Waters Forecast for the Bering Sea

Wind forecasts reflect the predominant speed and direction
expected. Sea forecasts represent an average of the highest
one-third of the combined wind wave and swell height.

PKZ499-230215-
357 AM AKDT Thu Mar 22 2018
.SYNOPSIS FOR CENTRAL BERING SEA...

A strong front in the central Bering reaches the eastern Bering this
afternoon and then weakens tonight as it moves inland. The 
associated 980 mb low at 54N 180E moves into eastern Russia by 
tonight. A 992 mb low Fri night at 50N 173E moves to 54N 179W at 989 
mb by Sat morning.

$$

PKZ411-230215-
Bering Sea Offshore West of 180 and East of the International
Dateline-
357 AM AKDT Thu Mar 22 2018

...GALE WARNING THROUGH TONIGHT...

.TODAY...W wind 30 to 45 kt. Seas 14 to 21 ft. Snow.
.TONIGHT...SW wind 25 to 40 kt. Seas 14 to 20 ft. Freezing spray.
Snow showers.
.FRI...SW wind 15 to 30 kt. Seas 11 to 17 ft. Freezing spray.
.FRI NIGHT...SW wind 10 to 25 kt. Seas 8 to 13 ft.
.SAT THROUGH MON...NW wind 10 to 25 kt. Seas 6 to 11 ft.

$$

PKZ412-230215-
Bering Sea Offshore 171W to 180 and North of 56N-
357 AM AKDT Thu Mar 22 2018

...STORM WARNING TODAY...

.TODAY...SW wind 40 to 55 kt diminishing to 35 to 45 kt in the
afternoon. Seas 19 to 25 ft. Snow and rain.
.TONIGHT...SW wind 30 to 40 kt. Seas 17 to 23 ft.
.FRI...SW wind 20 to 30 kt. Seas 15 to 20 ft.
.FRI NIGHT...S wind 10 to 25 kt. Seas 11 to 16 ft.
.SAT...E wind 10 to 25 kt. Seas 9 to 14 ft.
.SUN THROUGH MON...NW wind 15 to 25 kt. Seas 7 to 12 ft.

$$

PKZ413-230215-
Bering Sea Offshore 171W to 180 and South of 56N-
357 AM AKDT Thu Mar 22 2018

...GALE WARNING THROUGH TONIGHT...

.TODAY...SW wind 30 to 45 kt diminishing to 25 to 35 kt in the
afternoon. Seas 16 to 20 ft.
.TONIGHT...SW wind 25 to 35 kt. Seas 15 to 19 ft.
.FRI...SW wind 30 kt. Seas 12 to 17 ft.
.FRI NIGHT...S wind 15 to 30 kt. Seas 11 to 14 ft.
.SAT THROUGH MON...NW wind 15 to 30 kt. Seas 9 to 14 ft.

$$

PKZ414-230215-
Bering Sea Offshore East of 171W-
357 AM AKDT Thu Mar 22 2018

...GALE WARNING TODAY...

.TODAY...S wind 30 to 45 kt becoming SW 20 to 30 kt in the
afternoon. Seas 9 to 17 ft. Rain.
.TONIGHT...SW wind 15 to 30 kt. Seas 9 to 16 ft.
.FRI...SW wind 15 to 30 kt. Seas 10 to 14 ft.
.FRI NIGHT...S wind 15 to 25 kt. Seas 9 to 14 ft.
.SAT...SE wind 15 to 30 kt. Seas 7 to 12 ft.
.SUN...E wind 10 to 25 kt. Seas 6 to 11 ft.
.MON...NW wind up to 20 kt. Seas 6 to 11 ft.

$$

002 
FZAK62 PAFC 222339
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
339 PM AKDT Thu Mar 22 2018

Offshore Waters Forecast for the Bering Sea

Wind forecasts reflect the predominant speed and direction
expected. Sea forecasts represent an average of the highest
one-third of the combined wind wave and swell height.

PKZ499-231245-
339 PM AKDT Thu Mar 22 2018
.SYNOPSIS FOR CENTRAL BERING SEA...

A front in the central Bering reaches the eastern Bering this
afternoon and then moves inland. The associated 962 mb low moves
into eastern Russia this evening. A 993 mb low at 50N 173E Fri
afternoon moves to 56N 176W at 985 mb Sat afternoon.

$$

PKZ411-231245-
Bering Sea Offshore West of 180 and East of the International
Dateline-
339 PM AKDT Thu Mar 22 2018

...GALE WARNING TONIGHT...

.TONIGHT...SW wind 25 to 35 kt. Seas 14 to 21 ft. Freezing spray.
.FRI...SW wind 15 to 30 kt. Seas 11 to 18 ft.
.FRI NIGHT...SW wind up to 20 kt becoming NW after midnight. Seas
9 to 14 ft.
.SAT...NW wind 15 to 30 kt. Seas 8 to 13 ft.
.SAT NIGHT...NW wind 20 to 30 kt. Seas 9 to 12 ft.
.SUN THROUGH TUE...W wind 15 to 30 kt. Seas 6 to 11 ft.

$$

PKZ412-231245-
Bering Sea Offshore 171W to 180 and North of 56N-
339 PM AKDT Thu Mar 22 2018

...GALE WARNING TONIGHT...

.TONIGHT...SW wind 25 to 40 kt. Seas 18 to 25 ft.
.FRI...SW wind 30 kt. Seas 15 to 20 ft.
.FRI NIGHT...S wind 15 to 30 kt. Seas 10 to 16 ft. Snow.
.SAT...SE wind 15 to 30 kt. Seas 9 to 14 ft.
.SAT NIGHT...NW wind 20 to 35 kt. Seas 12 to 16 ft.
.SUN THROUGH MON...NW wind 20 to 35 kt. Seas 9 to 14 ft.
.TUE...NW wind 15 kt. Seas 3 to 6 ft.

$$

PKZ413-231245-
Bering Sea Offshore 171W to 180 and South of 56N-
339 PM AKDT Thu Mar 22 2018

.TONIGHT...SW wind 30 kt. Seas 15 to 20 ft.
.FRI...SW wind 20 to 30 kt. Seas 12 to 15 ft.
.FRI NIGHT...S wind 25 kt becoming 15 to 30 kt after midnight.
Seas 11 to 15 ft. Snow and rain.
.SAT...S wind 15 to 30 kt. Seas 10 to 15 ft.
.SAT NIGHT...W wind 20 to 35 kt. Seas 10 to 18 ft.
.SUN...NW wind 20 to 35 kt. Seas 12 to 18 ft.
.MON THROUGH TUE...NW wind 10 to 20 kt. Seas 6 to 11 ft.

$$

PKZ414-231245-
Bering Sea Offshore East of 171W-
339 PM AKDT Thu Mar 22 2018

.TONIGHT...SW wind 10 to 25 kt. Seas 10 to 17 ft.
.FRI...SW wind 10 to 25 kt. Seas 10 to 15 ft.
.FRI NIGHT...S wind 15 to 25 kt. Seas 9 to 13 ft. Rain.
.SAT...SE wind 15 to 30 kt. Seas 8 to 12 ft.
.SAT NIGHT...SE wind 20 to 30 kt. Seas 8 to 12 ft.
.SUN...SW wind 15 to 30 kt. Seas 9 to 14 ft.
.MON THROUGH TUE...NW wind 10 to 25 kt. Seas 6 to 11 ft.

$$

Southcentral and Southwest Alaska Forecast Discussion
National Weather Service Anchorage AK
544 AM AKDT Tue Mar 20 2018

.ANALYSIS AND UPPER LEVELS...

A colder air mass has overspread all of southern Alaska this
morning. The result is a lot less cloud cover since the air mass
is also much drier. However, a few small-scale features remain,
which are causing some localized clouds. These include the last
remnants of the old air mass moving through the eastern Copper
River Basin, and a fast moving mesolow over the Lower Kuskokwim
Valley that is likely to dissipate once it reaches the Alaska
Range later this morning. Finally, with broad west to northwest
flow, the west and northwest faces of the Kuskokwim Mountains and
Alaska Range are remain cloudy due to upslope. The Anchorage
sounding remains very dry compared to 24 hours ago, so any
passing cloud cover is not expected to develop any shower activity
except possibly in the mountains where upslope and less
atmosphere for any precipitation to fall through may allow it to
reach the ground. The primary weather hazard today, and for the
next several days, will be strong winds gusting through the gaps
making for hazardous travel conditions in those areas.

In the upper levels, a broad trough axis is right over
Southcentral this morning. It is amplifying southeastward as an
upper low forms over the northern Gulf. Meanwhile, ridging over
the Bering is also amplifying. The result will be a pattern that
holds as is for the next several days as any features moving
through the area get sent poleward or equatorward, resulting in
little eastward movement.

&&

.MODEL DISCUSSION...

The models remain in excellent agreement for the next few days.
Thus, forecast confidence is very high. The primary forecast
challenge will be the winds, as minute features in the flow will
act to locally enhance or diminish the broad offshore winds. The
high resolution models were preferred for this forecast package
since they much better handle the local effect winds.

&&

.AVIATION...

PANC...VFR conditions and light winds will persist for the next
several days. Periods with stronger winds will be possible, and
represents the main forecast challenge. Currently, the first
period of stronger northwest winds looks to impact the airport
this afternoon.

&&

.SHORT TERM FORECAST SOUTHCENTRAL ALASKA (Days 1 and 2)...
The primary weather concern through mid week will continue to be
on the strength of the outflow winds that are developing
throughout the Gulf Coast. The one exception to this will be for
an outside chance of snow showers over the Cook Inlet region this
morning as a weak shortwave moves overhead, which much of the
model guidance is indicating in some way. The 12z Anchorage sounding
however indicates very dry low levels and as a result this has
been left out of the forecast outside of western faces of the
Chugach Range. Radar will need to be closely monitored this
morning to confirm this is actually the case.

Back the main focus of the forecast, strong northwesterly winds
have already developed around Kodiak Island and the Barren
Islands and will continue to spread to the east today as the
trough slides off to the east. This event still looks to favor
northerly gap winds throughout the Gulf Coast, such as through
Resurrection Bay and the Valdez area, though gusty westerly winds
will occur today from Turnagain Arm into Passage Canal while
there is still some westerly support aloft. The strongest winds
still look to hold off until at least Wednesday when high pressure
will approach from the interior, reinforcing the tight pressure
and thermal gradient, especially in the Valdez/Thompson Pass area.
There is an outside chance of catching a few warning level gusts
especially through Thompson Pass as this occurs, however with the
strongest upper level support further to the west and limited cold
air in the Copper River Basin it still appears that these winds
will likely peak at around 70 mph.

&&

.SHORT TERM FORECAST SOUTHWEST ALASKA (Days 1 and 2)...

The METAR at Sparrevohn has snow showers, which is a function of
upsloping. Both the radars at King Salmon and Bethel are pretty
uneventful. A dome of high pressure has set up over Unalaska and
upper level heights are rebounding across Southwest. Predominately
dry and mild weather is expected today, Wednesday and into
Thursday.

&&

.SHORT TERM FORECAST BERING SEA/ALEUTIANS (Days 1 and 2)...

The latest ASCAT (advanced scatterometer) pass has the surface
high over Unalaska. This forecast period expect the high to build
and become more amplified. The 570 DAM will be just south of the
Central Aleutians by this afternoon bringing a touch of spring to
the region. Expect widespread subsidence and warming across the
Central and Eastern Aleutians. Looking upstream, the low over
Central Kamchatka continues to skirt the peninsula. The jet that
is driving this storm is just west of Attu Island and it is well
over 120 knots. The latest ASCAT also pings into gale force winds
near Attu. Wednesday, the models bring the cold front into the
Western Aluetians and those gales will push eastward. Expect
another round of precipitation and in the wake of the frontal
passage a distinct cooling trend.

&&

.LONG TERM FORECAST (Days 3 through 7)...
On Thursday night a large upper low will be situated over the
Bering Sea, Aleutians, and the west coast of Alaska. There will be
a full latitude blocking high along 155 degrees west longitude,
with another upper low centered to the west of Vancouver Island.
This pattern will begin to break down by the weekend, but exactly
how this occurs is not well agreed upon by the models. The 00Z
ECMWF supports a compact upper low which will peel off from mean
trough near the Yukon Territory that would undercut the ridge and
form a Rex block. Meanwhile, the past few runs of the GFS suggest
maintaining more of an Omega block signature as downstream energy
does not show any retrogression back toward mainland Alaska.
Underneath this blocking regime, a chain of shortwaves appear
primed to sweep across the Aleutians into the Gulf of Alaska
during much of the forecast. This will be a fairly active pattern
for the Aleutians and southern Alaska. Due to the model
differences, timing of any individual systems is problematic.
Therefore the WPC forecast relies heavily on the ensemble means,
with the strongest weighting towards the 00z ECMWF mean.

&&

.AFC WATCHES/WARNINGS/ADVISORIES...
PUBLIC...None.
MARINE...Gale 119 120 121 127 128 130 131 132 136 137 138 178 185
351 352 411.

&&

SYNOPSIS AND MODEL DISCUSSION...JPW
SOUTHCENTRAL ALASKA...DEK
SOUTHWEST ALASKA/BERING SEA/ALEUTIANS...PJS
LONG TERM...BL

SPECIAL WEATHER STATEMENT
National Weather Service ANCHORAGE AK
323 PM AKDT Tue Mar 20 2018

AKZ111-211600-
Matanuska Valley-
Including the cities of Palmer, Wasilla, Sutton, and Chickaloon
323 PM AKDT Tue Mar 20 2018

...WINDY CONDITIONS EXPECTED WEDNESDAY AND WEDNESDAY NIGHT FOR
THE MATANUSKA VALLEY...

Northeasterly winds are expected to increase beginning Wednesday morning
for the Matanuska Valley. Winds will be gusty and reach peak
speed close to 65 mph Wednesday night. Driving may be difficult,
especially across the usual windy areas such as Moose Flats.
Secure loose objects and expect blowing debris.